Temperature tuning of the optical properties of planar photonic crystal microcavities

Wild, B.; Ferrini, R.; Houdré, R.; Mulot, M.; Anand, S.; Smith, C.J.M.
February 2004
Applied Physics Letters;2/9/2004, Vol. 84 Issue 6, p846
Academic Journal
We report on the temperature tuning of the optical properties of photonic crystal (PhC) microcavities. Planar and one-dimensional cavities were made from two-dimensional PhCs etched in GaAs and InP based vertical waveguides. These systems were optically characterized by an internal light source technique. The samples were mounted on a Peltier stage in order to vary the temperature from 20 to 76 °C. Linear dependence of the resonance wavelengths with respect to the temperature is observed with gradients dλ/dT=0.09 and 0.1 nm/°C for GaAs and InP based cavities, respectively. These results are in agreement with theoretical calculations based on the thermal dependence of the refractive index of the PhC semiconductor component. © 2004 American Institute of Physics.


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